Re: [Gnuplot-info] failed to plot function

[Jefferson S. E. P. <st...@gm...>]

The important point seems to be making sure a floating point operation
is performed:

gnuplot> print 3/2
1
gnuplot> print 3./2
1.5

So I think f(x) should be defined as:

f(x)=3*x**2/((1.5-x)**2*(x+3))*exp(-(1./(1-2./3*x)+4./3*log(x+3)+5./3*log(abs(3./2-x))-3*log(3)-1+5./3*log(2))/6)

Cheers,
Stafusa


On Wed, Dec 26, 2012 at 4:37 AM, t t <la...@ma...> wrote:
>  Dear gnuplot users,
> I want to plot one function
> set terminal postscript eps enhanced
> set output "distr.eps"
> set xrange [0:1]
> set key above
> f(x)=3*x**2/((1.5-x)**2*(x+3))*exp(-(1/(1-2/3*x)+4/3*log(x+3)+5/3*log(abs(3/2-x))-3*log(3)-1+5/3*log(2))/6)
> plot f(1)*x
>
>
> and it says:
> all points y value undefined!
> What's wrong with my function?
> f(1) is a real number about 2.7
> Thank you for your attention
> gnuplot 4.6 patchlevel 1
> --
>
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